The bidets they make use all existing connections so no real install needed especially with having an apartment they use all existing toilet hook ups. You can get a fancy one that requires electricity or just something super simple like the link below.
Veken Non-Electric Bidet, Self Cleaning Dual Nozzle (Feminine/Bidet Wash) Bidet Attachment for Toilet, Fresh Water Sprayer Toilet Seat Attachment with Adjustable Pressure Control https://www.amazon.com/dp/B07H2DWVMK/ref=cm_sw_r_cp_api_gl_i_H7F0NCAGM737RE1HAMGC
I know these things suck. Mine didn’t really start till about 4yrs ago and had 15+ surgeries I have honestly lost count and I have had 3 alone since beginning of February.
Granted for the first time in a while although I have 5 setons, I am now feeling pretty good with the treatment I’m getting so far.
https://www.amazon.com/dp/B07H2DWVMK/ref=cm_sw_r_cp_api_glt_i_MYDMBM6B188WS57BERR6
My SO and I have this model, it’s been good to us, I do like the ‘female cleaning’ option for different angles and it’s great for any menstrual related messes.
Would a heated one be nice? Yes. But the price goes up dramatically when you add in the heating capabilities.